什么是Principle（principal和principle有什么区别）

principle 英[ˈprɪnsəpl] 美[ˈprɪnsəpəl] n. 原则，原理; 准则，道义; 道德标准; 本能; [例句]Buck never allowed himself to be bullied into doing anything that went against his principles 巴克从来不会因为受到威胁而做违背自己原则的事情。